We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
New Method of Synthesizing Aluminum Oxynitride Spinel Powders.
- Authors
Ruan, Guozhi; Xu, Haisen; Zhang, Zhihui; Yin, Mingqiang; Xu, Guogang; Zhan, Xiaoyuan; McCauley, J
- Abstract
Aluminum oxynitride spinel ( AlON) powders were synthesized by aluminothermic reaction in a reducing N2- CO atmosphere. Low cost and easily available aluminum and γ- Al2 O3 alumina micrometer-sized powders were employed as starting materials. Mixed powders consisting of 75 wt% Al and 25 wt% Al2 O3 were milled together and pressed into billets with diameter of 20 mm and height of 15 mm. Green-body billets were then calcined in charcoal-protected condition (namely in a N2- CO atmosphere) at 1600°C. Phase composition and microstructure of final sintered products were analyzed. The results showed that AlON phase with AlN as a minor phase was formed at 1600°C for 3 h. At the same time, grains of AlON were tabular in shape and whiskers can be found in samples after being sintered at 1600°C.
- Subjects
ALUMINUM oxynitride spinel; MICROSTRUCTURE; SOLID solutions; THERMAL stability; OXIDATION
- Publication
Journal of the American Ceramic Society, 2013, Vol 96, Issue 6, p1706
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/jace.12366